Yahoo Research Engineer interview questions

Contacted by a recruiter. He sent me an online exam in the Codility platform. After the exam, I contacted the recruiter and he invited me for an interview at their offices. The interview consisted of an informal meeting with a director, followed by a software engineering interview.

DON'T BOTHER TO APPLY HERE. It's October 2018. I was going to graduate in December 2018. I received an offer from Yahoo as a Research Engineer after their usual 2 interviews+on-site setting. I have another offer at this point, which I need to respond by end of October. The recruiter told me Compensation, Benefits, Travel reimbursement and all aspects of the offer on 30th October and assured me I can let the other offer go as they'll send a letter shortly. I did the biggest mistake ofy life by letting the other offer go. Yahoo did now send an offer in November. In December, they told me(after loads of pestering) there's the holiday season and we may send it in January but nothing is sure. It's December, month ofy graduation and I don't have a job suddenly. It's January and they've still not got back to me and choose to ignore my calls and emails. Pretty shameful for a company like Yahoo. If this is the way it treats potential employers it's good I'm not working there.